Shuttle and shuttle-block for narrow-ware looms.



. vW. WATTIKE. l SHUTTLE :AND SHUTTLE BLOCK FOR NARROW WAEEILQOMS.

` 'PPLIOATION HLBD M'AR.2e',-j19o8.

Patented Ap 1f.11',1911.

UNITED sTATEs rATENT OFFICE.

WILLIAM WATTIE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON &KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

oeaooi.

Specification of Letters Patent.

Patented Apr. 1.1., 1.91.1.

Application filed March 26, 1908. Serial No. 423,385.

To all whom it may concern:

is recessed and flattened as shown at. ll.

Be it knownthat l, WILLIAM Wrr'rn, a The opposite side oi' the shuttle,on its inner citizen of the United Htates, residing;- at

Worcester, in the county of foreester and i State olf Massachusetts,have invented eertain new and useful lmprovements in Shuttles andShuttle-Blocks for Narrow- VVare Looms, of which the following is aspecification.

lilly invention relates to shuttles, and shuttle blocks for narrow warelooms, and the object of my invention is to provide an improved shuttle,and shuttle block ior looms of the class referred to.

lu my improved eonstruetion of a shuttle, and a sluittle bleek, I makethe bearing surfaces ou the shuttle, and on the shuttle'bloek, of amaterial which is harder and-more durable than the rest of the shuttleor shuttle block, whieh are ordinarily made of wood. .l preferably makesaid bearing surfaces of ber, which-are secured to the shuttle, and

4a shuttle', .1nd o't a shuttle block, for narrow ware looms,y embodyingmy il'uprovements.

Referring to the tlran'ingvlfigure l a top or plan view of a shuttleembodying,r my imynovements.. Fig. 2 is an underside view ot the shuttle.shown in Fig. l. Fig. is a section, on line 3, 3, Fig. l, looking 'inthe direction ol" arrow a, same figure. Fig. f-lis a rear edge view ofthe shuttle, looking in the direetioi'i ot arrow b, Fig. 3; a portion ofthc rear part of the shuttle is broken away. Fig. 5 is a front view ot ashuttle block used in connection with the shuttle shown in the previousfigures. A part of the face ot the block is broken away to show thebearinpr surface on the upper side of the groove or race. Fig. G is anedge View of the shuttle bloek shown in Fig. 5, looking in the directionot' arrow o, same ligure. Fig. 7 is a top View of the block shown inFig. looking in the direction ot arrow d. Fig. 8 is a section, on line8,8, Fig. 5, lookingr in the direction of arrow same ligure.

In the aeoon'ilnlnying d rawiug, l is a shut.-

tle for a narrow ware loom, whieh shuttle i an elongated groove l, andthe rear edge portion is also fiattened, as shown at 1, in Fig. $55.

A\ll of the above mentioned parts.- may be of the usual and well knownconstruction. l will now describe my improvements.

The .surface 1 of the shuttle 1, which ordinarily forms a bearingsurface of the shuttle on the shuttle block is provided with a facing orstrip of material 3, as liber, which is harder than the material ofwhich the shuttle is made, ordinarily wood, and is attaehed to theshuttle preferably by means ot hard wood pins 3. The surface 1 of theAshuttle l, which ordinarily forms a bearing` surface of the shuttle, isprovided with a facing or strip of materia-l fl, as fiber, and issecured to the shuttle preferably by means of hard wood pins 4'.'

The shuttle block 5, in connection with which the shuttle l is used, maybe of any -usual construction, and has the undercut 'groove or race 5for the shuttle, 1n the usual way, 'lhe upper side of the race 5 isadapted to be engaged in this instaneeby the loe-an ingsurface B on theshuttle l, and the lower side ot the race. 5 is adapted to be engaged inthis instance by the bearing surface 4 on the shuttle l. The upper Sideof the'rae'e 5 is provided with a surface of harder material t), asliber, made in the form of a strip, and `secured to the shuttle block inanysuitable manner.A The lower side of the race 5 ol the shuttle block5, is provided preferably with two strips of harder material, as 7, and8, which form bearing surfaces for the shuttle l and are secured uponthe shuttle bleek in unv suitable manner. The strip'8 forms a shelf orsupport for the shuttle, of harder material than the body of the shuttleblock, and extends outside of the face of 'the main block, as shown inFig. G.

The advantages of my improvements will be readily appreciated by thoseskilled in the art'. l provide a shuttle, having the Surface on whichthe moet wear comes, of harder and more durable material than thev restof the shuttle. 1" also provide a shuttie block, having;v the surfat'eson which the most wear and friction of the shuttle come, o'l harder andmore durable material than the rest. of the shuttle bleek.

ln the form of narrow ware loom t0 which my invention relates theshuttles are i Owing to gravityv and to the pressure of the pinionswhich engage the racks formed in the under sides of the back or heelportions 'of the shuttles the most of the Wear on the shuttles andshuttle blocks occurs at the top and bottom bearing portions of theshuttle and the top and bottom bearing portions of the grooved racewaysin the shuttle blocks, and I have therefore app-lied the non-metallicfacings, composed preferably of thin strips of vulcanized fiber, to theregistering portions of the shuttles and shuttle blocks at which theWear mainly Occurs. It

will thus be seen that the invention provides Such contacting rubbingsurfaces as Will `resist Wear at the particular points at Which thegreatest pressure, and conse- `quent greatest friction, occurs.

It will `be understood that the details of construction of myimprovements may be varied if desired.

Having thus described iny invention, what I claim as new and desire tosecure by Letters Patent is l. A vnon-metallic shgiittle for narrowware'looms, combined with a shuttle block having a groove adapted toreceive theV heel portion of said shuttle, one of said parts havingbearing portions or facngs of harder material than its body, to resistWear.

2. A non-metallic shuttle for narrowT Ware looms having a heel portiontted to Work in agrooved race-Way in a shuttle block, and Which heelportion is provided With a rack,` the upper and lower bearing surfacesof said heel portion/ of said shuttle having, at the points at whichth'e greater friction occurs, non-metallic facings of harder Ina4 terialthan the body of the shuttle, combined Witlia shuttle block, having avgroove adapt ed to receive said. heel portion of said shuttle.

, vided 3. A nonmetallic shuttle fornarrow Ware looms, havin a heelportion fitted towork in a groove race-Way in a shuttle block, and whichheel portion is provided with a rack, combined with a shuttle blockhaving Va groove adapted to receive said heel portion of said shuttle,the top' and bottom" bearing portions of said block bein with facings ofharder Inateris` the body of said block, to resist Wear.l

4. A. non-nietallic shuttle. for narrow Ware looms having a heel portionfitted to 'Work in a grooved 'raceway in a shuttle block and which heelportion is provided prothan 'With' a rack, the'upper and lower bearinsurfaces of theV said heel ortion of sai shuttle having non-metallicfacings of harder material than the body of the shuttle at the points atwhich the greatest friction occurs, combined With a shuttle block havinga groove adapted to receive the said heel portion of said shuttle, thetop and bottom bearing portions of 4said block being i provided withfacings, registering with the said acings on the shuttle, of hardermaterial than the body of said block, to resist Wear.

5. A -Wooden shuttle for narrow ware looms having a heel portion fittedto work in a groovod raceway in a shuttle block and which heel portionis provided with a rack, the upper and lower bearing surfaces of thesaid heel portion of said shuttle having facings of fiber Iat the'points at Which the greatest friction occurs, combined. with a Woodenshuttle block having a adapted to receive the said heel portion of saidshuttle, the top and bot-tom bearing portions of said block beingprovided with facings, registering with the said acings on the shuttle,of fiber, to resist wear.

. WILLIAM WATTIE. Witnesses:

` JoHN C. DEWEY,

M. Haas.

